Cotton-cleaner attachment for gins.



PATENTED MAR. 17, 1903.

. v M. RUTH. GOTTON CLEANER ATTACHMENT FOR GINS.

APPLIOATIOILFILED SEiT. 14, 1901.

no MODEL.

INVENTOH 4 WITNESSES:

A TTOHNEYS A UNITED STATES- straight.

FFICE.

MATTHEW RUTH, on NEW EDINBURG, ARKANSAS.

COTTON-CLEANER ATTACHMENT FOR ems.

SPECIFICATION forming part of Letters Patent No. 723,035, dated March 17, 1908.

i Application filed September 14, 1901. Serial No. 75,392. (No model.)

To all whom it may concern.-

Be it known that I, MATTHEW RUTH, a citi-- zen ofthe United States, residing at New Edinhurg, in the county of Cleveland and State.

strike it in rapid succession, and the dust,

dirt, and other foreign substances contained in the cotton are thereby loosened and freed from it. Air-blasts have been employed to remove such dust, dirt, doc. I employ an improved construction and arrangement of parts for effecting this result, as hereinafter described, and shown in the accompanying drawings, in which- Figure l is a, central vertical section of a saw-gin provided with my improved attachment. Fig. 2 is a face view of a portion of the air-tube Within the gin. Fig. 3 is a top view of the portion of the gin-box where the air-tube has its exit or mouth. Fig. 4: is a de tail view showing a horizontal section through the air-tube. The view also illustrates the relation of wide and reduced slots inthe side walls of the air-tube and the saws passing through them.

The gin-box A is provided with ribs B, saws C, and a brush D, arranged in the usual way. The box A is traversed in a practically vertical plane by an air-tube E, which is arranged between the axisof the saws and the brush. This passage E is made of nearly the same width as the box- A (see Fig. 3) and is preferably curved adjacent to the axis of the saws, so that a larger section or segment of the latter projects through the slots F of the air-tube than would be practicable if the air-tube were As shown in Fig. 2, the said slits F are arranged parallel and vertical in both sides of the air-tube E and are slightly enlarged at their ends. The slits in the air-tube which are nearest the axis of the saws are made much wider than those which are farthest in order to allow dirt, &c., to enter the tube more freely.

The cotton deposited in the gin -box is drawn between the ribs B in the usual way and carried forward by the saws through the In-its passage from the ribs B to the brush D thecotton traverses the air-passage E, and in so doing is subjected to the blast from the suction-fan G, connected with the lower end of the tube E, as shown. By this means the dust, dirt, and other like foreign substances which may be held in the cotton, but which are loosened by the action of the saws, are drawn down and removed from the gin, and the cotton passes to the brush practically clean. It will be further seen that the parts of the air-tube intervening the slots F form practically so many ribs and that their action supplements that of the true ribs B and assists to a certain degree in breaking up looks or tangles of cotton and removal of foreign substances therefrom. By means of my improved attachment all dust, dirt, trash, &c., are carried away from the lint, which is thus delivered in a superior condition. The attachment is comparatively simple in construction and may be applied to gins at small cost.

I am aware that the broad idea of a forced or induced blast of air in rear of the gin-ribs and across the saws for removing dust, dirt, &;c., in the cotton is not broadly new; but I think my special air passage or tube is new peculiarslots F in the rear wall E of the air-.

passage E, wide enough only to allow free passage of the saws, and the wide or enlarged slots F in the front Wall E of the said airpassage E. A cotton-gin provided with my peculiar air-passage gives improved results in more thoroughly removing dust, &c., from the cotton than is possible with similar airpassages as heretofore constructed and used, for the reason that with the pressure of air confined to the saw-teeth at practically the top or uppermost edge of the saw, the cotton is less liable to be disengaged and be carried off through the air-passage along with the dust, 850. Special advantage results from the wide or enlarged slots in the front wall of the air-passage allowing the loosened cotton on the saws and any foreign matter-suoh as parts of leaves,stems, &c.contained therein free entrance into the passage E in position to be acted upon by the blast of air, and the cotton thereby purified of foreign matter.

The slots in the rear walls of the said passage being reduced to size just wide enough to allow free rotation of the saws, it is apparent that air will be drawn through the enlarged front slots and practically preclude entrance through the rear slots. With such construction it will be understood that the cotton while being carried through the front slots is acted upon first by an induced draft of air drawn through the said front slots and then by the air-pressure upon the upper edge of the same. I would call attention to the fact that my special draft-passage is adapted to any common type of saw-gin. It is, in fact, a cotton-cleaning attachment complete in itself, and for that reason is novel aside from the improved results over similar air-passages now usedfor the same purpose.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, -is

In combination with a cotton-gin, an airpassage of the character described extending upward through the gin-box and located Wholly between the saw-shaftand the brush, there being enlarged slots in the front walls of the said air-passage, and reduced slots in the rear Walls of the said air-passage, the reduced slots being located back of the enlarged slots adapted for passage of the saws through both of the side walls in position for the brushing action substantially as described.

MATTHEW RUTH.

Witnesses:

W. OREED HASKINS, W. D. ATTWOOD. 

